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Nature chemical biology

Diels-Alder reaction-triggered bioorthogonal protein decaging in living cells.


PMID 25362360

Abstract

Small molecules that specifically activate an intracellular protein of interest are highly desirable. A generally applicable strategy, however, remains elusive. Herein we describe a small molecule-triggered bioorthogonal protein decaging technique that relies on the inverse electron-demand Diels-Alder reaction for eliminating a chemically caged protein side chain within living cells. This method permits the efficient activation of a given protein (for example, an enzyme) in its native cellular context within minutes.